From shifting colours to phantom rays, these five challenges reveal how easily your mind can be fooled by light, contrast, ...

Zero-dimensional lead-free organic–inorganic hybrid metal halides have drawn attention as a result of their local metal ion confinement structure and photoelectric properties. Herein, a lead-free ...

A new optical illusion, the 'expanding hole,' tricks the brain and reflexes, causing pupil dilation as if entering a dark space. A study reveals that 86% of people perceive the illusion, with black ...